Development of Materials and Processes for Tandem Perovskite / Silicon Solar Cells
Abstract
Our goal is to understand and overcome barriers to low-cost manufacturing of stable, high-efficiency, tandem Si/perovskite solar cells and to develop effective charge-recombination layers (CRLs) for such cells. We will develop crosslinked (in some cases doped) polymeric semiconducting layers to create stable and reproducible CRLs for high-efficiency tandem photovoltaic cells that, when interfaced with appropriate inorganic interlayers, will allow one to simultaneously optimize both optical and electrical properties of the entire perovskite device stack, while also offering avenues to improve stability and lifetime. While we focus on Si/perovskite p-i-n tandems, the development of such interlayers also has implications for other tandem cell combinations and will increase our understanding of the factors that limit the performance of perovskites in tandem solar cells. This project focuses on enabling record performance (efficiency and stability) tandem perovskite-onsilicon solar cells through new charge recombination layers (CRLs) that enable better tandem stack optimization. The CRL embodies much of what distinguishes a tandem from a single-junction cell. The project will focus on (1) Integrating newly synthesized organic and hybrid materials into the CRLs; (2) understanding, blocking, and becoming resilient to ion migration; (3) reducing defect densities in wide gap perovskites, and; (4) modeling and testing perovskite-on-Si tandems.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jul 20, 2020
- Source ID
- N629092012054
Entities
People
- Henry Snaith
Organizations
- Office of Naval Research
- United States Navy
- University of Oxford